{"note":"bim_versions 導入後の保存のみ記録 (それ以前は bim_canonical 上書きで履歴なし)","ok":true,"slug":"u-house-s9lcjjqb","versions":[{"created_at":"2026-06-04T05:50:06Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.5→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"0c5df78dad825f9eea946c227fb2d390005e1a6f09e89e088fb17b722b54d034","version":10},{"created_at":"2026-06-04T04:59:16Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 37.5→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"5cef340a5da237eed8fe59288a359aea1edbc8cd3523b5a7c1855a06c80906e8","version":9},{"created_at":"2026-06-04T04:59:16Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"9e82f72b416a6e05b5e63878e71268e3ed6c9c295211414436db87761ae07953","version":8}]}